Latest research of the Gartner Analysis Company shows currently more than 80% of the enterprises implemented a virtualization project or plan. With diskless Linux based on PXE remote boot technology, Citrix Corporation's server virtualization product XenServer and application virtualization product XenApp cannot only reduce the complexity of the LAN foundation construction, improve the operating efficiency of the LAN, simultaneously reduce the cost of LAN hardware and software, it also manage and maintain client software system more easily.